Hydrocarbon-lamp.



Patented Aug. l9, I902.

N A M L n. T. 8 am G 7 H 7 0 7 0 N HYDBOGABBON LAMP.

' (Application filed Apt-24, 1902.)

(No Model.)

Tn: Noam Perms c0. FHOTO-L|THO.. WASNINGTCIN. n. c.

UNITED STATES" PATENT OFFICE.

GEORGE E. STILLMAN, OF PHILADELPHIA,PENNSYLVANIA.

HYDROCARBON-LAM P.

srnorrrcn'rrolv forming part of Letters Patent No. 707,177, dated August 19, 1902.

Application filed April 24, 1902.

To alt whom it may concern:

Be it known that I, GEORGE R. STILLMAN, a citizen of the United States, residing atthe city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have in-; vented certain new and useful Improvements in Hydrocarbon Lamps or Oil-Fonts, of which the following is a specification.

My invention has relation to that class of hydrocarbon lamps or oil-fonts in which a'por: tion of the font contains a filler of fibrous material, such as prepared'wool, adapted to readily absorb the hydrocarbon oil, and thus prevent a splashing movement of the oil 'in the first, toprovide a reservoir or fontrfor a hydrocarbon-lamp or similar structure with two chambers separatedfrom each other by a perforated partition, the upper chamber adapted to receive fibrous material, such as prepared wool, and the lowe'r chamber adapted to receive 'the hydrocarbon oil, the upper chamber :being traversed. by a perforated wick-chamber, the lower open end' of which communicates directly. with the hydrocarbonoil chamber; second, to extend the perforated wick-tube beyond the oil reservoir or font and to surround the projecting end by a cap to form an overflow-chamber above the reservoir proper, and, third, to provide an-oil reservoir or font of an inverted-frusto-conicalshape to prevent outflow of'the hydrocarbon oil by overturning or tilting of the lamp.

The nature and scope of my invention will be more fully understood from the following. description, taken in connection withthe accompanying drawings, forming part hereof, in which-- A Figure 1 is a side elevational view ofahy drocarbonoil lamp embodying mainfeatures' of my invention, 'Fig. 2 is an enlargediver tical sectionalview of'the lamp, illustrating the perforatedpartition and perforated tube carried bythe sameandthe manner in which the oil reservoiror font of the lamp is divided into chambers or'co'mpartments. Fig. 3 is a horizontal sectional view, enlarged, of the oil reservoir or font; and Fig. 4 is a vertical sec- Serial No. 104,441- (No model.)

tional view of the font, illustrating the same astresting on its inclined surface. 7 Referring to the drawings, A represents the oil-reservoir or font, preferably of an inverted-frusto-conical shape, having'a flat bottom Ka -and a hat top 0. A certain distance above /the flat bottom a and parallel to the same is arranged aperforated partition or false bottom b, dividing the reservoir or font A into two chambers c and'cof preferably unequal size. The perforated partition or false bottom 1) also serves as a support for a centrallyarranged perforated tube b, which extends through the fiat top 'aiiof the reservoir A and projects a certaindistanceebove the same. The projectingendJJ of the perforated tube b is surrounded by a cap or housing b ,-which, in conjunction with the end 12 ofsaid tube, forms an overflow-chamber-.0 above the reservoir Aproper-fora purpose tobe hereinafter more fully explained. The cap or housing I)? is provided .with a downwardly-projecting threaded portion bf, intogwhich'the burner (55, carrying the wick eand chimneyf, is screwed.

The chamber c is filled with a fibrous material, l

material. The overflow-chamber 0 however,

remainsvnormally empty and only receives,

ioil whenthe lampis tilted or overturned, as ,illustratedin liig. 4:, in which instance said overflowfchambenc eby receiving the oil pre- VentsLan' outflow of the same through the .burner d and also prevents possible ignition jofLthehydrOcarbon oil as wellas explosion. By first supplying the lowermost chamber 0 with oil through the perforated tube' 1)" any impurities in the same will};atl lrallyaccumulate and remain in the chamber 0, even if the oil completely fills the chamber 0 and flows into the chamber 0'. The partition b, separating the chambers c andc from each other,

will prevent the flow of any impurities into the chamber 0 and onto and through the fibrous material thereof, so that the wool will always be kept cleanly and substantially free from such impurities of the oil. The connection of the perforated wick-tube Z) directly with the lowermost chamber 0 affords ample room for the wick e by permitting the same to freely enter said chamber. This feature prevents the crowding and twisting, especially of along wick e, in the perforated tube b during insertion of the burner d onto the cap or housing 19 and,furthermore, permits the Wick to maintain a substantially flat and straight position in the perforated tube 6' and chamber c. The additional advantage of maintaining the wick in a flat position results in the proper feeding of the wick e to the burner d and also in the proper feeding of the oil to the flame throughthe wick.

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A hydrocarbon lamp or oil font, comprising a wick-chamber, the wall whereof is perforated, an oil-chamber arranged below the lower open end of said wick-chamber, a third chamber surrounding the perforated wall of said wick-chamber and arranged above the oilchamber, the base of said third chamber-being perforated, and a cap or housing arranged at the top of the font and adapted to surround and receive the upper open end of the wickchamber.

2. A lamp-font, comprising an invertedfrusto-conical casing divided into upper and lower compartments by a horizontal perforated partition, and a perforated tube traversing the upper horizontal compartment and in open communication at its base with the lower compartment.

In testimony whereof I have hereunto set my signature in the presence of two subscrib- 

